Project Pier <= 0.8.8 Arbitrary File Upload RCE
Vulnerability Description
Project Pier 0.8.8 and earlier contains an unauthenticated arbitrary file upload vulnerability in tools/upload_file.php. The upload handler fails to validate the file type or enforce authentication, allowing remote attackers to upload malicious PHP files directly into a web-accessible directory. The uploaded file is stored with a predictable suffix and can be executed by requesting its URL, resulting in remote code execution.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- BlackHawk
- sinn3r
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/projectpier_upload_exec.rb
- https://www.exploit-db.com/exploits/21929
- https://packetstorm.news/files/id/117070
- https://web.archive.org/web/20120111090432/http://www.projectpier.org/
- https://www.opensourcecms.com/projectpier/
- https://www.vulncheck.com/advisories/project-pier-arbitrary-file-upload-rce
Affected Vendor
ProjectPier
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